US Patent Issued to Adeia Guides on Dec. 30 for "Upconversion-based photochromic dimming in waveguide displays" (Israeli Inventor)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,511,850, issued on Dec. 30, was assigned to Adeia Guides Inc. (San Jose, Calif.).

"Upconversion-based photochromic dimming in waveguide displays" was invented by Yuval Ofir (Kfar Ha-Oranim, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems, methods and apparatuses are described for dimming one or more portions of an extended reality (XR) display. Control circuitry may be configured to generate for display, at the display, an XR object. A dimmable optical element may comprise a plurality of up-converting nanoparticles and a photochromic material, and is configured to cause a change in color of at least a portion of the display. The dimmable o...